Mitsubishi Montero (2004+). Manual - part 874

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-71

DTC 22 (P0715): Input Shaft Speed Sensor System

AC205189AC

Input Shaft Speed Sensor System Circuit

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-72

AC204747

CONNECTOR : C-16

C-16 (B)

AB

1

3

2

AC204170

CONNECTOR : D-01

CD

9 10

8

6 7

31 32

30

29

18 19 20 21

5

4

2

1

3

27

26

24

23

25

12 13 14 15 16 17

28

11
22
33

AC204681AC

CONNECTOR: D-134

D-134 (GR)

61 62

63 64

65 66 67 68 69 70 71 72 73

82

89

81

88

80

79

78

77

87

86

85

76

75

74

84

83

AC204191

CONNECTORS : D-208, D-212

5 6

2

4

3

1

JUNCTION BLOCK
(FRONT VIEW)

3

10

9

4

11

8

7

1

5

2

6

D-208

D-208

D-212

D-212

AS

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-73

.

CIRCUIT OPERATION

• The input shaft speed sensor generates 0 ⇔ 5 

volts pulse signal when the input shaft rotates. 
The pulse signal frequency increases with a rise 
in input shaft speed.

• The input shaft speed sensor is connected to the 

PCM (terminals 64 and 88) via the input shaft 
speed sensor connector (terminals 1 and 2).

• The PCM detects the input shaft speed by the 

signal input to terminal 64.

• The input shaft speed sensor generates the pulse 

signal as the teeth of the reverse clutch retainer 
pass the magnetic tip of the sensor.

.

DESCRIPTIONS OF MONITOR METHODS
If there is no detection pulse from input shaft speed 
sensor (turbine rotation) even during driving test at 
more than specified speed, PCM judges that input 
shaft speed sensor has a failure.

.

MONITOR EXECUTION
Continuous

.

MONITOR EXECUTION CONDITIONS (OTHER 
MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• DTC 29 (P0500): Vehicle speed sensor malfunc-

tion

Sensor (The sensor below is determined to be 

normal)

• Vehicle speed sensor

.

AC204194

CONNECTORS : E-11, E-114

3

10

16

9

7 8

6

1

4

2

5

11

14

1213

15

BC

E-11

E-114

E-11

E-114

38

28

16

33

22

10

31

19

7

1

18

30

29

17

5

6

21

20

32

8

2

9

25

13

3

24

23

3435

1112

27

26

3637

14

4

15

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-74

LOGIC FLOW CHARTS (Monitor Sequence)

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DTC SET CONDITIONS

Check Conditions

• Transmission range switch position: D.

• Vehicle speed: 30 km/h (19 mph) or more.

• Transmission fluid temperature sensor voltage: 

4.5 volts or less.

Judgement Criteria

• Input shaft speed sensor signal: no signal 

change. (4 seconds)

• If DTC 22 (P0715) is set consecutively four times, 

the transmission is locked into 3rd gear or 2nd 
gear as a fail-safe measure, and the "N" range 
light flashes once per second.

.

OBD-II DRIVE CYCLE PATTERN
Start the engine, shift to 3rd gear or higher, and drive 
at 40 km/h (25 mph) or more for 10 seconds.

.

AC205223

N

E

 : 

Engine speed

START

Yes

No

Transmission fluid 
temperature sensor 
voltage < 4.5 V

Transmission range 
switch position is in 
D, 3, 2 or L range

Shift stage is 1st or 2nd
and N

E

 < 2,600 r/min

Vehicle speed > 30 km/h (19 mph)

Yes

No

Yes

No

Yes

No

Pulses of input shaft speed 
sensor are not inputted

Continuous failure for 4 secs.

Good

Malfunction

END

Yes

No

Yes

No

AB

Transmission range 
switch position is in 
D range